Mathematics: A city has an elevation of -17 meters closer to sea level than a city that has an elevation of -40 meters. Agree or Disagree? Why?

A city has an elevation of -17 meters closer - id1713375125, RandomLollipop

lb31224

19.06.2021

Hello!

Say that this 8 (orver there>) reprosents see level 8

If i am 17 spaces below the 8 i am down here.

(the 2 is 17 spaces bellow)

If there where a 3 that was 40 spaces bellow see level it would be much further than the 2

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Jackmcvay14

15.02.2022

A sample of n=8 scores has a mean of m=12. What is the value of ∑x for this sample

We are given the mean of 8 scores is 12.

We are required to find the sum of these 8 observation's, $\sum x$

We know that:

$\bar{x}=\frac{\sum x}{n}$

We are given:

$\bar{x} = 12, n=8$

$\therefore 12=\frac{\sum x}{8}$

$\sum x = 12 \times 8$

$\sum x=96$

Hence, sum of 8 observation's, $\sum x =96$

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